fix build

R=r CC=golang-dev https://golang.org/cl/790041

fix build
R=r CC=golang-dev https://golang.org/cl/790041
5a716206 · Robert Griesemer · 7ffe938f · 5a716206
Commit 5a716206 authored Mar 26, 2010 by Robert Griesemer
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regexp.go src/pkg/testing/regexp.go +1 -1

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--- a/src/pkg/testing/regexp.go
+++ b/src/pkg/testing/regexp.go
@@ -615,7 +615,7 @@ func CompileRegexp(str string) (regexp *Regexp, error string) {
 	regexp.expr = str
 	regexp.inst = make([]instr, 0, 20)
 	error = regexp.doParse()
-	if error != nil {
+	if error != "" {
 		regexp = nil
 	}
 	return